EP3653375B1 - Verfahren zur herstellung einer isolierplatte für eine sandwichplatte, dämmplatte und verfahren zur herstellung einer sandwichplatte - Google Patents

Verfahren zur herstellung einer isolierplatte für eine sandwichplatte, dämmplatte und verfahren zur herstellung einer sandwichplatte Download PDF

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Publication number
EP3653375B1
EP3653375B1 EP18206492.3A EP18206492A EP3653375B1 EP 3653375 B1 EP3653375 B1 EP 3653375B1 EP 18206492 A EP18206492 A EP 18206492A EP 3653375 B1 EP3653375 B1 EP 3653375B1
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EP
European Patent Office
Prior art keywords
insulation
elements
elongated
mineral wool
board
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EP18206492.3A
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English (en)
French (fr)
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EP3653375A1 (de
Inventor
Jens Eg RAHBEK
Steen Lindby
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Rockwool AS
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Rockwool International AS
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Priority to ES18206492T priority Critical patent/ES2899610T3/es
Priority to DK18206492.3T priority patent/DK3653375T3/da
Priority to EP18206492.3A priority patent/EP3653375B1/de
Priority to PL18206492T priority patent/PL3653375T3/pl
Publication of EP3653375A1 publication Critical patent/EP3653375A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/002—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising natural stone or artificial stone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/108—Rockwool fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • B32B2419/06—Roofs, roof membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Definitions

  • the present invention relates to a method of producing an insulation board for a sandwich panel, an insulation board for a sandwich panel and a method for producing a sandwich panel.
  • sandwich panels are made of a core comprising adjacent mineral wool fibre lamellae, which are sandwiched between two metal sheets.
  • sandwich panels are employed in the building industry as e.g. facade or roof panels and providing the building with fireproof thermal insulation properties.
  • reinforcement elements may be provided between the lamellae whereby the compression strength, shear strength, bending strength and delamination strength are increased.
  • An example of such sandwich panel is known from WO 2005/124048 .
  • WO 2016/083368 there is disclosed a sandwich panel with a core of mineral wool fibre lamellae having a relative low density and with high density stringers in between said lamellae.
  • This sandwich panel is produced by cutting a dual density mineral fibre product into the lamellae and rotating the lamellae before re-joining them to form the core layer in the sandwich panel.
  • the thermal insulation performance of the sandwich panel is improved in a cost-efficient manner due to the possibility of reducing the average density of the core material.
  • a board of porous insulation material such as stone wool
  • a gas-impermeable foil is wrapped in a gas-impermeable foil and sealed so that entrapped gas at sub-atmospheric pressure is inside the foil.
  • the entrapped gas can be carbon dioxide, argon or the like, whereby a lowering of the thermal conductivity properties of the insulation board is achieved.
  • this improved thermal insulation property is lost if the gas-impermeable sealing foil is punctured and atmospheric gas enters the porous insulation board.
  • the general technical background of the invention also includes EP3075918A1 .
  • This object is achieved by providing a method of producing an insulation board for use in a sandwich panel production process, said method comprising:
  • an insulation board for producing a sandwich panel core which comprises a plurality of elongated insulation elements, each comprising a board of porous insulation material wrapped in a gas-impermeable foil and having a top surface and a bottom surface and a generally rectangular cross-sectional shape; said elongated insulation elements being arranged adjacent each other at a predetermined distance from each other, a first mineral fibre board being fixed to the bottom surfaces of said plurality of elongated insulation elements and a second mineral wool fibre board fixed to the top surface of said plurality of elongated insulation elements.
  • an insulation board which can be used in a conventional sandwich panel production process in order to produce a sandwich panel with improved thermal insulation properties.
  • the enhanced thermal insulation properties of a board of porous insulation material, such as stone wool, wrapped in a gas-impermeable foil are by the invention found advantageous to utilise in a sandwich panel.
  • the foil is wrapped but not adhesively attached to the insulation material so according to the invention the provision of the first and second mineral wool fibre board will provide the necessary compression strength as well as shear strength, bending strength and delamination strength to the sandwich panel as the first and second boards end as stringers in the resulting sandwich panel.
  • Another aspect of the invention is the provision of a method of producing a sandwich panel, said method comprising the steps of:
  • the elongated insulation elements are arranged in rows comprising a plurality of elongated insulation elements abutting each other end-to-end and where the predetermined distance is between said rows.
  • the elongated insulation elements at the end regions of the resulting sandwich panel may have to be cut in order to achieve the desired dimensions of the sandwich panel.
  • the insulation elements are wrapped in gas-impermeable foil and often filled with a highly insulating gas, any cut will puncture this foil wrapping and thereby the insulation properties of the particular insulation element are compromised.
  • the ratio of "punctured" elements is reduced.
  • "fingers” are preferably temporarily arranged between the rows of elongated insulation elements until the elongated insulation elements have been fixed to at least one of the first and second mineral wool fibre boards, whereafter the fingers are removed.
  • the predetermined distance between the elongated insulation elements creates a space which is void. This results in less material used and thereby a more cost-effective and lighter sandwich panel.
  • spacer elements may be provided between the elongated insulation elements, when the elongated insulation elements are arranged on the first mineral wool fibre board, said spacer elements having a thickness corresponding to the predetermined distance between the elongated insulation elements.
  • spacer elements are made of mineral wool fibre, preferably with a density of 40-100 kg/m 3 , preferably 50-80 kg/m 3 . Accordingly, the spacer elements can preferably be provided with a lower density to reduce the weight of the final sandwich panel since the spacer elements in the final product do not need to contribute to structural strength of the sandwich panel.
  • the porous insulation material of the elongated insulation elements is a low density mineral wool fibre product, such as a product having a density of 10-100 kg/m 3 .
  • the ambient air inside the gas-impermeable foil is replaced by an insulating gas, such as argon or CO 2 .
  • the first and second mineral wool fibre boards are made of mineral wool fibres with a density of 100-250 kg/m 3 , preferably 150-200 kg/m 3 , more preferably approx. 170 kg/m 3 .
  • the first and second cover sheets are preferably glued to edges of at least some of the first and second mineral wool fibre boards.
  • the first and second cover sheets may be textured or plain smooth sheets, preferably made of metal, such as steel.
  • FIG. 1 there is shown an insulation board 2 for use in a sandwich panel production process to produce a sandwich panel 10, as shown in fig. 5 .
  • the insulation board 2 comprises a plurality of elongated insulation elements 4.
  • the elements 4 are made up of porous insulation material wrapped in a gas-impermeable foil, and where the insulation elements 4 have a generally rectangular cross-sectional shape.
  • the insulation elements 4 are arranged in rows adjacent each other on a first mineral wool fibre board 8 at a predetermined distance from each other and a second mineral wool fibre board 6.
  • the elongated insulation elements 4 are fixed to the first and second mineral wool fibre boards 6, 8, for example by gluing.
  • the elongated insulation elements 4 are preferably arranged in rows comprising a plurality of elongated insulation elements 4 abutting each other end-to-end and where the predetermined distance is between said rows.
  • distance members or "fingers" (not shown) on production tools may preferably be provided to ensure the rows are provided with sufficient accuracy in the insulation board 2. Accordingly, distance members, such as fingers, are temporarily arranged between the rows of elongated insulation elements 4 until the elongated insulation elements 4 have been fixed to at least one of the first and second mineral wool fibre boards 6, 8. These fingers are afterwards removed, when the elongated insulation elements 4 have been fixed to either of or both of the first and second mineral fibre boards 6, 8 with a space 7 between each row.
  • the insulation board 2 is cut by cutting tools 3 into a plurality of lamellae 2' (see also figs. 3 and 4 ) by cutting through the space 7 created by the predetermined distance between the elongated insulation elements 4 of the insulation board 2.
  • the cutting tools 3 are arranged with equidistant mutual distances and the rows, and thereby the position of the spaces 7 between the elongated insulation elements 4, are arranged such that the cutting tools 3 cut the lamellae 2' by cutting through the spaces 7 leaving the insulation elements 4 intact and thus not perforated.
  • Each of the lamellae 2' are rotated 90 degrees as shown in fig. 3 a) and b ) and then the rotated lamellae 2' are re-assembled as shown in fig. 4 to form a sandwich core panel 12.
  • a first cover sheet 14 on one side of the sandwich core panel 12 is applied to one side of the sandwich core panel 12 and a second cover sheet 16 is applied on an opposite side of the sandwich core panel 12.
  • the first and second cover sheets 14, 16 are attached to the sandwich core panel 12, preferably by being glued to the cut ends of the first and second mineral wool boards 6, 8 of each lamellae2'.
  • These first and second cover sheets 14, 16 are preferably steel plates and may be textured or plain smooth sheets. Often the cover sheets 14, 16 have a thickness of 0.5 to 1 mm, but they may be thicker.
  • the porous insulation material of the elongated insulation elements 4 is preferably a low density mineral wool fibre product, such as a product having a density of 10-100 kg/m 3 .
  • the insulation material is wrapped in a gas-impermeable foil to form the elongated insulation element 4.
  • an insulating gas such as argon or CO 2 , to increase the insulation properties.
  • the foil is not adhesively attached to the insulation material, but tightly fitted around the insulation material and provided with sub-pressure inside the foil.
  • the elongated insulation elements 4 may also be so-called vacuum insulating panels (VIP).
  • the first and second mineral wool fibre boards 6, 8 are made of mineral wool fibres with a density of 100-250 kg/m 3 , preferably 150-200 kg/m 3 , more preferably approx. 170 kg/m 3 . This density is a higher density than that of the insulation material of the insulation elements 4. This means that when the lamellae are rotated, the mineral fibre boards 6, 8 act as stingers and provide increased compression strength as well as increased shear strength, bending strength and delamination strength of the final sandwich panel 10.
  • a second embodiment of the invention is shown, wherein spacer elements 5 are provided between the rows of elongated insulation elements 4. Accordingly, the elongated insulation elements 4 are arranged on the first mineral wool fibre board 8 with the spacer elements 5 in between so that due to the thickness of the spacer elements 5, which is corresponding to the predetermined distance between the elongated insulation elements 4 the insulation core panel 2, the insulation core panel 2 is provided such that the cutting tools 3 is cutting the lamellae 2' by cutting through the spacer elements 5 leaving the insulation elements 4 intact and thus not perforated (as shown in fig. 7 ).
  • the spacer elements 5 are preferably made of mineral wool fibre, preferably with a density of 40-100 kg/m 3 , preferably 50-80 kg/m 3 .
  • the first and second mineral wool fibre boards 6, 8 being made of mineral wool fibres with a density of 100-250 kg/m 3 , preferably 150-200 kg/m 3 , more preferably approx. 170 kg/m 3 , and which is a higher density than that of the insulation material of the insulation elements 4, the spacer elements 5 can be provided with a lower density as the spacer elements 5 in the final product do not need to contribute to structural strength of the sandwich panel.
  • each of the lamellae 2' are rotated 90 degrees as shown in fig. 8 a) and b ) and then the rotated lamellae 2' are re-assembled as shown in fig. 9 to form a sandwich core panel 12.
  • a first cover sheet 14 on one side of the sandwich core panel 12 is applied to one side of the sandwich core panel 12 and a second cover sheet 16 is applied on an opposite side of the sandwich core panel 12.
  • the first and second cover sheets 14, 16 are attached to the sandwich core panel 12, preferably by being glued to the cut ends of the first and second mineral wool boards 6, 8 of each lamellae2'.
  • These first and second cover sheets 14, 16 are preferably steel plates and may be textured or plain smooth sheets. Often the cover sheets 14, 16 have a thickness of 0.5 to 1 mm, but they may be thicker.
  • the porous insulation material of the elongated insulation elements 4 is preferably a low density mineral wool fibre product, such as a product having a density of 10-100 kg/m 3 .
  • the insulation material is wrapped in a gas-impermeable foil to form the elongated insulation element 4.
  • an insulating gas such as argon or CO 2 , to increase the insulation properties.
  • the foil is not adhesively attached to the insulation material but tightly fitted around the insulation material and provided with sub-pressure inside the foil.
  • the elongated insulation elements 4 may also be so-called vacuum insulating panels (VIP).
  • the first and second mineral wool fibre boards 6, 8 are made of mineral wool fibres with a density of 100-250 kg/m 3 , preferably 150-200 kg/m 3 , more preferably approx. 170 kg/m 3 .
  • This density is a higher density than that of the insulation material of the insulation elements 4. This means that when the lamellae are rotated, the mineral fibre boards 6, 8 act as stingers and provide increased compression strength as well as increased shear strength, bending strength and delamination strength of the final sandwich panel 10.
  • the overall dimensions of the insulation board 2 may be approximately 2000x1000x100 mm, since this is the size of mineral wool boards used in conventional sandwich production processes.
  • Each of the elongated insulation elements 4 may have a length of e.g. 500 mm, a width of 150 to 350 mm (corresponding to the thickness of the final sandwich panel) and a thickness of 60 to 80 mm.
  • the thickness of the first and second mineral wool boards 6, 8 may be 10 to 20 mm.
  • the distance between the elongated insulation elements may be 10 to 20 mm, such that there is sufficient space to cut between the insulation elements 4. Other dimensions may of course be applied.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Building Environments (AREA)

Claims (19)

  1. Verfahren zum Herstellen einer Isolierplatte zur Verwendung in einem Sandwichplattenherstellungsprozess, wobei das Verfahren Folgendes umfasst:
    - Bereitstellen einer Vielzahl von länglichen Isolierelementen, wobei jedes eine Platte aus porösem Isoliermaterial, das in einer gasundurchlässigen Folie eingewickelt ist, umfasst und eine Oberfläche und eine Unterfläche und eine im Allgemeinen rechteckige Querschnittsform aufweist;
    - Anordnen der länglichen Isolierelemente benachbart zueinander auf einer ersten Mineralwollfaserplatte mit einem vorbestimmten Abstand voneinander, wobei die Unterflächen der länglichen Isolierelemente an der ersten Mineralwollfaserplatte befestigt sind; und
    - Anordnen und Befestigen einer zweiten Mineralwollfaserplatte an den Oberflächen der länglichen Isolierelemente.
  2. Verfahren nach Anspruch 1, bei dem die länglichen Isolierelemente in Reihen angeordnet sind, die eine Vielzahl von länglichen Isolierelementen, die durchgehend aneinander anliegen, umfassen und wobei der vorbestimmte Abstand zwischen den Reihen vorhanden ist.
  3. Verfahren nach Anspruch 1 oder 2, bei dem Zapfen zeitweise zwischen den Reihen länglicher Isolierelemente angeordnet sind, bis die länglichen Isolierelemente an mindestens einer von der ersten und zweiten Mineralwollfaserplatte befestigt sind, wobei die Zapfen danach entfernt werden.
  4. Verfahren nach einem der vorstehenden Ansprüche, bei dem Abstandshalterelemente zwischen den länglichen Isolierelementen bereitgestellt sind, wenn die länglichen Isolierelemente auf der ersten Mineralwollfaserplatte angeordnet sind, wobei die Abstandshalterelemente eine Dicke aufweisen, die dem vorbestimmten Abstand zwischen den länglichen Isolierelementen entspricht.
  5. Verfahren nach Anspruch 4, bei dem die Abstandshalterelemente aus Mineralwollfaser gefertigt sind, vorzugsweise mit einer Dichte von 40-100 kg/m3, vorzugsweise 50-80 kg/m3.
  6. Verfahren nach einem der vorstehenden Ansprüche, bei dem das poröse Isoliermaterial der länglichen Isolierelemente ein Mineralwollfaserprodukt mit geringer Dichte ist, wie etwa ein Produkt mit einer Dichte von 10-100 kg/m3.
  7. Verfahren nach einem der vorstehenden Ansprüche, bei dem Umgebungsluft innerhalb der gasundurchlässigen Folie durch ein Isoliergas, wie etwa Argon oder CO2, ersetzt ist.
  8. Verfahren nach einem der vorstehenden Ansprüche, bei dem die erste und zweite Mineralwollfaserplatte aus Mineralwollfasern mit einer Dichte von 100-250 kg/m3, vorzugsweise 150-200 kg/m3, mehr bevorzugt ungefähr 170 kg/m3 gefertigt sind.
  9. Isolierplatte zur Verwendung in einem Sandwichplattenherstellungsprozess, wobei die Platte Folgendes umfasst:
    eine Vielzahl von länglichen Isolierelementen, wobei jedes eine Platte aus porösem Isoliermaterial, das in einer gasundurchlässigen Folie eingewickelt ist, umfasst und eine Oberfläche und eine Unterfläche und eine im Allgemeinen rechteckige Querschnittsform aufweist;
    wobei die länglichen Isolierelemente benachbart zueinander mit einem vorbestimmten Abstand voneinander angeordnet sind,
    wobei eine erste Mineralfaserplatte an den Unterflächen der Vielzahl von länglichen Isolierelementen befestigt ist und eine zweite Mineralwollfaserplatte an der Oberfläche der Vielzahl von länglichen Isolierelementen befestigt ist.
  10. Isolierplatte nach Anspruch 9, wobei die länglichen Isolierelemente in Reihen angeordnet sind, die eine Vielzahl von länglichen Isolierelementen, die durchgehend aneinander anliegen, umfassen und wobei der vorbestimmte Abstand zwischen den Reihen vorhanden ist.
  11. Isolierplatte nach Anspruch 9 oder 10, wobei eine Vielzahl von Abstandshalterelementen zwischen den länglichen Isolierelementen bereitgestellt ist, wobei die Abstandshalterelemente eine Dicke aufweisen, die dem vorbestimmten Abstand zwischen den länglichen Isolierelementen entspricht.
  12. Isolierplatte nach Anspruch 11, wobei die Abstandshalterelemente aus Mineralwollfasern mit einer Dichte von 40-100 kg/m3, vorzugsweise 50-80 kg/m3, gefertigt sind.
  13. Isolierplatte nach Anspruch 9 oder 10, wobei der vorbestimmte Abstand zwischen den länglichen Isolierelementen einen Raum erzeugt, der leer ist.
  14. Isolierplatte nach einem der Ansprüche 9 bis 13, wobei das poröse Isoliermaterial der länglichen Isolierelemente ein Mineralwollfaserprodukt mit geringer Dichte ist, wie etwa ein Produkt mit einer Dichte von 10-100 kg/m3.
  15. Isolierplatte nach einem der Ansprüche 9 bis 14, wobei Umgebungsluft innerhalb der gasundurchlässigen Folie durch ein Isoliergas, wie etwa Argon oder CO2, ersetzt ist.
  16. Isolierplatte nach einem der Ansprüche 9 bis 15, wobei die erste und zweite Mineralwollfaserplatte aus Mineralwollfasern mit einer Dichte von 100-250 kg/m3, vorzugsweise 150-200 kg/m3, mehr bevorzugt ungefähr 170 kg/m3 gefertigt sind.
  17. Verfahren zum Herstellen einer Sandwichplatte, wobei das Verfahren die folgenden Schritte umfasst:
    - Bereitstellen einer Isolierplatte nach einem der vorstehenden Ansprüche 9 bis 16; wobei das Verfahren zum Herstellen einer Sandwichplatte die folgenden Schritte umfasst:
    - Schneiden der Isolierplatte in eine Vielzahl von Lamellen durch Schneiden durch den Raum, der durch den vorbestimmten Abstand zwischen den länglichen Isolierelementen der Isolierplatte erzeugt wurde,
    - Drehen der Lamellen um 90 Grad,
    - erneutes Zusammenbauen der gedrehten Lamellen, um eine Sandwichkernplatte zu bilden, wobei die erste und zweite Mineralwollfaserplatte benachbart zueinander angeordnet sind, und dann
    - Aufbringen einer ersten Deckschicht auf einer Seite der Sandwichkernplatte und Aufbringen einer zweiten Deckschicht auf einer gegenüberliegenden Seite der Sandwichkernplatte.
  18. Verfahren nach Anspruch 17, wobei die erste und zweite Deckschicht an Kanten mindestens einiger der ersten und zweiten Mineralwollfaserplatten geklebt werden.
  19. Verfahren nach Anspruch 17 oder 18, wobei die erste und zweite Deckschicht strukturierte oder glatte gleichmäßige Schichten sind, die vorzugsweise aus Metall, wie etwa Stahl, gefertigt sind.
EP18206492.3A 2018-11-15 2018-11-15 Verfahren zur herstellung einer isolierplatte für eine sandwichplatte, dämmplatte und verfahren zur herstellung einer sandwichplatte Active EP3653375B1 (de)

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ES18206492T ES2899610T3 (es) 2018-11-15 2018-11-15 Método para producir un tablero de aislamiento para un panel tipo sándwich, un tablero de aislamiento y un método para producir un panel tipo sándwich
DK18206492.3T DK3653375T3 (da) 2018-11-15 2018-11-15 Fremgangsmåde til fremstilling af en isoleringsplade til et sandwichpanel, isoleringsplade og fremgangsmåde til fremstilling af et sandwichpanel
EP18206492.3A EP3653375B1 (de) 2018-11-15 2018-11-15 Verfahren zur herstellung einer isolierplatte für eine sandwichplatte, dämmplatte und verfahren zur herstellung einer sandwichplatte
PL18206492T PL3653375T3 (pl) 2018-11-15 2018-11-15 Sposób wytwarzania płyty izolacyjnej do panelu warstwowego, płyta izolacyjna i sposób wytwarzania panelu warstwowego

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BE789716A (fr) * 1971-10-05 1973-02-01 Rockwool As Panneaux isolants et leur fabrication
DK42794A (da) * 1994-04-13 1995-10-14 Rockwool Int Pladeformet isoleringselement
SI21807A (sl) 2004-06-15 2005-12-31 Termo, D.D., Industrija Termicnih Izolacij, Skofja Loka Ojacana gradbena termoizolacijska plosca
WO2016083368A1 (en) 2014-11-24 2016-06-02 Rockwool International A/S A method of producing a sandwich panel core of mineral wool fibres
FI127881B (fi) * 2015-03-30 2019-04-30 Paroc Group Oy Kuitupohjaista eristettä sisältävä eristystuote
CA3008534C (en) 2015-12-17 2023-10-24 Rockwool International A/S A method of producing an insulation product and a product obtained by said method

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